A breeding bird survey monitors the status and trends of bird populations. Data from the survey are an important source for the range maps found in field guides. The North American Breeding Bird Survey is a joint project of the United States Geological Survey (USGS) and the Canadian Wildlife Service. The UK Breeding Bird Survey is administered by the British Trust for Ornithology, the Joint Nature Conservation Committee, and the Royal Society for the Protection of Birds.

See also

• Australian Bird Count (ABC)
• BioBlitz ("24-hour inventory")
• Breeding in the wild
• Christmas Bird Count (CBC) (in the Western Hemisphere)
• Seabird Colony Register (SCR)
• The EBCC Atlas of European Breeding Birds
• Tucson Bird Count (TBC) (in Arizona in the US)

External links

• North American Breeding Bird Survey
• UK Breeding Bird Survey

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